fix building under Linux and Solaris

ispell/ispell.spec

@@ -78,6 +78,9 @@ AutoReqProv:  no
       echo "#define MAN4DIR    \"%{l_prefix}/man/man4\""
       echo "#define WORDS      \"$RPM_BUILD_DIR/words\""
       echo "#define YACC       \"%{l_prefix}/bin/bison -y\""
+      case "%{l_target}" in
+          *-linux* | *-solaris* ) echo "#define USG" ;; 
+      esac
       #echo "#define LANGUAGES \"{american,MASTERDICTS=american.med+,HASHFILES=americanmed+.hash,EXTRADICT=$RPM_BUILD_DIR/words}\""
     ) >local.h
     %{l_make} %{l_mflags}